@book{8670,
	author = {U. N., Economic and Social Affairs- International Deptt. of-. Commodity Trade Statistics},
	title = {Omen Rev. 2, Pakistan Rev. 2, Poland Rev. 2, Portugal Rev. 2.},
	publisher = {United Nations},
	year = {1986},
	series = {Statistical papers},
	address = {New York}
}